<script setup lang="ts">
import { getGoodsByIdAPI } from '@/services/goods'
import type { GoodsResult } from '@/types/goods'
import { computed, ref } from 'vue'
import AddressPanel from './components/AddressPanel.vue'
import ServicePanel from './components/ServicePanel.vue'
import GoodsSkeleton from './components/GoodsSkeleton.vue'
import type {
  SkuPopupEvent,
  SkuPopupInstance,
  SkuPopupLocaldata
} from '@/components/vk-data-goods-sku-popup/vk-data-goods-sku-popup'
import { addCartAPI } from '@/services/cart'

// 获取屏幕边界到安全区域距离
const { safeAreaInsets } = uni.getWindowInfo()

// 接收页面参数
const props = defineProps<{
  id: string
}>()

// 获取商品详情
const goods = ref<GoodsResult>({} as GoodsResult)
const isShow = ref(false) // 是否显示页面  /  骨架屏
const getGoodsData = async () => {
  const res = await getGoodsByIdAPI(props.id)
  goods.value = res.result
  isShow.value = true
  // 渲染sku数据
  // SKU组件所需格式
  localdata.value = {
    _id: res.result.id, // 商品id
    name: res.result.name, // 商品名称
    goods_thumb: res.result.mainPictures[0], // 商品主图
    spec_list: res.result.specs.map((v) => ({ name: v.name, list: v.values })), // 规格列表
    sku_list: res.result.skus.map((v) => ({
      _id: v.id, // sku id
      goods_id: res.result.id, // 商品id
      goods_name: res.result.name, // 商品名称
      image: v.picture, // 商品图片
      price: v.price * 100, // 注意：需要乘以 100 价格
      stock: v.inventory, // 库存
      sku_name_arr: v.specs.map((vv) => vv.valueName) // 规格名称
    })) // sku列表
  }
}
getGoodsData()

// 轮播图切换
const currentIndex = ref(0)
const swiperChange = (e: UniHelper.SwiperOnChangeEvent) => {
  currentIndex.value = e.detail.current
}
// 轮播图大图预览
const onBigImage = (url: string) => {
  uni.previewImage({
    current: url,
    urls: goods.value.mainPictures
  })
}

// 操作面板弹框
const popup = ref<UniHelper.UniPopupInstance>() // 弹框实例

const popupName = ref<'address' | 'service'>() // 弹框名称

const openPopup = (name: typeof popupName.value) => {
  // 修改弹出层名称
  popupName.value = name
  // 打开弹出层
  popup.value?.open?.()
}

// sku弹窗 ---------------
const isShowSkuPopup = ref(false)
const localdata = ref({} as SkuPopupLocaldata)
// 打开sku弹窗 ---------------
const openSkuPopup = (mode: SkuMode) => {
  skuMode.value = mode // 设置规格模式
  isShowSkuPopup.value = true // 显示sku弹窗
}
// 关闭sku弹窗 ---------------
const closeSkuPopup = () => {
  isShowSkuPopup.value = false // 隐藏sku弹窗
  skuMode.value = SkuMode.All // 重置规格模式
}

// sku弹窗按钮规格
enum SkuMode {
  All = 1, // 全部规格
  Cat = 2, // 加入购物车
  GoGo = 3 // 立即购买
}
const skuMode = ref<SkuMode>(SkuMode.All)

// sku弹窗实例
const skuPopup = ref<SkuPopupInstance>()

// 渲染商品规格内容 ---------------
const specsContent = computed(() => {
  return skuPopup.value?.selectArr?.join(' ')?.trim() || '请选择商品规格'
})

// 加入购物车事件 ---------------
const onAddCart = async (ev: SkuPopupEvent) => {
  await addCartAPI({ skuId: ev._id, count: ev.buy_num })
  uni.showToast({ title: '添加成功' })
  isShowSkuPopup.value = false
}

// 立即购买事件 ---------------
const onBuyNow = (ev: SkuPopupEvent) => {
  uni.navigateTo({ url: `/pagesOrder/create/create?skuId=${ev._id}&count=${ev.buy_num}` })
}
</script>

<template>
  <template v-if="isShow">
    <scroll-view scroll-y class="viewport">
      <!-- 基本信息 -->
      <view class="goods">
        <!-- 商品主图 -->
        <view class="preview">
          <swiper circular @change="swiperChange">
            <swiper-item v-for="picture in goods.mainPictures" :key="picture">
              <image @click="onBigImage(picture)" mode="aspectFill" :src="picture" />
            </swiper-item>
          </swiper>
          <view class="indicator">
            <text class="current">{{ currentIndex + 1 }}</text>
            <text class="split">/</text>
            <text class="total">{{ goods.mainPictures?.length ?? '5' }}</text>
          </view>
        </view>

        <!-- 商品简介 -->
        <view class="meta">
          <view class="price">
            <text class="symbol">¥</text>
            <text class="number">{{ goods.price }}</text>
          </view>
          <view class="name ellipsis">{{ goods.name }} </view>
          <view class="desc"> {{ goods.desc }} </view>
        </view>

        <!-- 操作面板 -->
        <view class="action">
          <view @tap="openSkuPopup(SkuMode.All)" class="item arrow">
            <text class="label">选择</text>
            <text class="text ellipsis"> {{ specsContent }} </text>
          </view>
          <view @tap="openPopup('address')" class="item arrow">
            <text class="label">送至</text>
            <text class="text ellipsis"> 请选择收获地址 </text>
          </view>
          <view @tap="openPopup('service')" class="item arrow">
            <text class="label">服务</text>
            <text class="text ellipsis"> 无忧退 快速退款 免费包邮 </text>
          </view>
        </view>
      </view>

      <!-- 商品详情 -->
      <view class="detail panel">
        <view class="title">
          <text>详情</text>
        </view>
        <view class="content">
          <view class="properties">
            <!-- 属性详情 -->
            <view class="item" v-for="propertie in goods.details?.properties" :key="propertie.name">
              <text class="label">{{ propertie.name }}</text>
              <text class="value ellipsis">{{ propertie.value }}</text>
            </view>
          </view>
          <!-- 图片详情 -->
          <image
            mode="widthFix"
            v-for="img in goods.details?.pictures"
            :key="img"
            :src="img"
          ></image>
        </view>
      </view>

      <!-- 同类推荐 -->
      <view class="similar panel">
        <view class="title">
          <text>同类推荐</text>
        </view>
        <view class="content">
          <navigator
            v-for="good in goods?.similarProducts"
            :key="good.id"
            class="goods"
            hover-class="none"
            :url="`/pages/goods/goods?id=${good.id}`"
          >
            <image class="image" mode="aspectFill" :src="good.picture"></image>
            <view class="name ellipsis">{{ good.name }}</view>
            <view class="price">
              <text class="symbol">¥</text>
              <text class="number">{{ good.price }}</text>
            </view>
          </navigator>
        </view>
      </view>
    </scroll-view>

    <!-- 用户操作 -->
    <view class="toolbar" :style="{ paddingBottom: safeAreaInsets.bottom + 'px' }">
      <view class="icons">
        <button class="icons-button"><text class="icon-heart"></text>收藏</button>
        <!-- #ifdef MP-WEIXIN -->
        <button class="icons-button" open-type="contact">
          <text class="icon-handset"></text>客服
        </button>
        <!-- #endif -->
        <navigator class="icons-button" url="/pages/cart/cart2" open-type="navigate">
          <text class="icon-cart"></text>购物车
        </navigator>
      </view>
      <view class="buttons">
        <view class="addcart" @click="openSkuPopup(SkuMode.Cat)"> 加入购物车 </view>
        <view class="buynow" @click="openSkuPopup(SkuMode.GoGo)"> 立即购买 </view>
      </view>
    </view>

    <!-- 底部弹窗 -->
    <uni-popup ref="popup" type="bottom" background-color="#fff">
      <AddressPanel v-if="popupName === 'address'" @close="popup?.close?.()" />
      <ServicePanel v-if="popupName === 'service'" @close="popup?.close?.()" />
    </uni-popup>
  </template>
  <!-- 骨架屏 -->
  <GoodsSkeleton v-else />
  <!-- sku弹窗 -->
  <vk-data-goods-sku-popup
    v-model="isShowSkuPopup"
    :localdata="localdata"
    :mode="skuMode"
    buy-now-background-color="#27ba9b"
    ref="skuPopup"
    :actived-style="{
      color: '#27ba9b',
      borderColor: '#27ba9b',
      backgroundColor: '#e9f8f5'
    }"
    add-cart-background-color="#ffa868"
    @add-cart="onAddCart"
    @buy-now="onBuyNow"
  />
</template>

<style lang="scss">
.toolbar .icons .navigator-wrap {
  flex: 1;
}

page {
  height: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

image {
  width: 100%;
  height: 100%;
}

.viewport {
  background-color: #f4f4f4;
}

.panel {
  margin-top: 20rpx;
  background-color: #fff;
  .title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90rpx;
    line-height: 1;
    padding: 30rpx 60rpx 30rpx 6rpx;
    position: relative;
    text {
      padding-left: 10rpx;
      font-size: 28rpx;
      color: #333;
      font-weight: 600;
      border-left: 4rpx solid #27ba9b;
    }
    navigator {
      font-size: 24rpx;
      color: #666;
    }
  }
}

.arrow {
  &::after {
    position: absolute;
    top: 50%;
    right: 30rpx;
    content: '\e6c2';
    color: #ccc;
    font-family: 'erabbit' !important;
    font-size: 32rpx;
    transform: translateY(-50%);
  }
}

/* 商品信息 */
.goods {
  background-color: #fff;
  .preview {
    height: 750rpx;
    position: relative;
    .image {
      width: 750rpx;
      height: 750rpx;
    }
    .indicator {
      height: 40rpx;
      padding: 0 24rpx;
      line-height: 40rpx;
      border-radius: 30rpx;
      color: #fff;
      font-family: Arial, Helvetica, sans-serif;
      background-color: rgba(0, 0, 0, 0.3);
      position: absolute;
      bottom: 30rpx;
      right: 30rpx;
      .current {
        font-size: 26rpx;
      }
      .split {
        font-size: 24rpx;
        margin: 0 1rpx 0 2rpx;
      }
      .total {
        font-size: 24rpx;
      }
    }
  }
  .meta {
    position: relative;
    border-bottom: 1rpx solid #eaeaea;
    .price {
      height: 130rpx;
      padding: 25rpx 30rpx 0;
      color: #fff;
      font-size: 34rpx;
      box-sizing: border-box;
      background-color: #35c8a9;
    }
    .number {
      font-size: 56rpx;
    }
    .brand {
      width: 160rpx;
      height: 80rpx;
      overflow: hidden;
      position: absolute;
      top: 26rpx;
      right: 30rpx;
    }
    .name {
      max-height: 88rpx;
      line-height: 1.4;
      margin: 20rpx;
      font-size: 32rpx;
      color: #333;
    }
    .desc {
      line-height: 1;
      padding: 0 20rpx 30rpx;
      font-size: 24rpx;
      color: #cf4444;
    }
  }
  .action {
    padding-left: 20rpx;
    .item {
      height: 90rpx;
      padding-right: 60rpx;
      border-bottom: 1rpx solid #eaeaea;
      font-size: 26rpx;
      color: #333;
      position: relative;
      display: flex;
      align-items: center;
      &:last-child {
        border-bottom: 0 none;
      }
    }
    .label {
      width: 60rpx;
      color: #898b94;
      margin: 0 16rpx 0 10rpx;
    }
    .text {
      flex: 1;
      -webkit-line-clamp: 1;
      line-clamp: 1;
    }
  }
}

/* 商品详情 */
.detail {
  padding-left: 20rpx;
  .content {
    margin-left: -20rpx;
    .image {
      width: 100%;
    }
  }
  .properties {
    padding: 0 20rpx;
    margin-bottom: 30rpx;
    .item {
      display: flex;
      line-height: 2;
      padding: 10rpx;
      font-size: 26rpx;
      color: #333;
      border-bottom: 1rpx dashed #ccc;
    }
    .label {
      margin-right: 25rpx;
    }
    .value {
      flex: 1;
    }
  }
}

/* 同类推荐 */
.similar {
  .content {
    padding: 0 20rpx 200rpx;
    background-color: #f4f4f4;
    display: flex;
    flex-wrap: wrap;
    .goods {
      width: 340rpx;
      padding: 24rpx 20rpx 20rpx;
      margin: 20rpx 7rpx;
      border-radius: 10rpx;
      background-color: #fff;
    }
    .image {
      width: 300rpx;
      height: 260rpx;
    }
    .name {
      height: 80rpx;
      margin: 10rpx 0;
      font-size: 26rpx;
      color: #262626;
    }
    .price {
      line-height: 1;
      font-size: 20rpx;
      color: #cf4444;
    }
    .number {
      font-size: 26rpx;
      margin-left: 2rpx;
    }
  }
  navigator {
    &:nth-child(even) {
      margin-right: 0;
    }
  }
}

/* 底部工具栏 */
.toolbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  background-color: #fff;
  height: 100rpx;
  padding: 0 20rpx var(--window-bottom);
  border-top: 1rpx solid #eaeaea;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-sizing: content-box;
  .buttons {
    display: flex;
    & > view {
      width: 220rpx;
      text-align: center;
      line-height: 72rpx;
      font-size: 26rpx;
      color: #fff;
      border-radius: 72rpx;
    }
    .addcart {
      background-color: #ffa868;
    }
    .buynow,
    .payment {
      background-color: #27ba9b;
      margin-left: 20rpx;
    }
  }
  .icons {
    padding-right: 10rpx;
    display: flex;
    align-items: center;
    flex: 1;
    .icons-button {
      flex: 1;
      text-align: center;
      line-height: 1.4;
      padding: 0;
      margin: 0;
      border-radius: 0;
      font-size: 20rpx;
      color: #333;
      background-color: #fff;
      &::after {
        border: none;
      }
    }
    text {
      display: block;
      font-size: 34rpx;
    }
  }
}
</style>
